Dowel-door-boring machine.



Patented Aug. I5, |899.

A. E. WOODS.

DOWEL DOOR BORING MACHINE.

(Application led Feb. 15, 1899.)

fun nim W/TNESSES:

B Sheets-Sheet l,

A TTOHNEY.

'mz cams versus co. rnoruuwo. wAsmuarou. n. c.

Patenfed Aug. I5, |899.

A. E. WDS.

DWEL DUUR BRlNG MACHINE.

(Appnction mad Feb. 15, 1899.)

6 Sheets-Sheet 2 (No Model.)

W/TNESSES By dm ATTORNEY.

(No Model.)

/TNESSES Patented Aug. l5, |899.

A. E. WDODS.

DDWEL DUUR BORING MACHINE.

(Application led Feb. 15, 1899.)

6 Sheets-Sheet 3.

Www

A TTOHNE Y.

Patented Aug. I5, |899.

A. E. WOODS. nowl-:L noun somma MACHINE.

(Application led Feb. 1b, 1899.)

6 Sheets-Sheet 4.

(No Model.)

lA TTOHNE Y.

irais co, mom-unie wlsmucran, n. c.

No. 630,963. Patented ug. l5, |899. A. E. woons.

DOWEL DUUR BORING MACHINE.

l(Appnmmm meu Feb. 15, 1899.) v (No Model.) 6 SheetsL-Sheet 5.

W/ T/VE SSE S /N VEN TOL? i; .11E-7450@ 5y ATTORNEY.

me Ncnms PETERS co. mooumo., wAsmNnraN. n. c

No. 639,969. Patented Aug. l5, |899.

A. E. woons. DOWEL DOOR BORING MACHINE.

(Application filed Feb. 15, 1899.)

(No Mudei.) 6 Sheet s-Sheet 6.

W/TNESSES /N VENTOH l M7460@ wif/29m UNITED' STATEsI PATENT OFFICE".-

AtnEE'r EDWIN WOODS, OE NEW wEsTMiNs'rEE, CANADA.

DowEL-DOoR-BORING MACHINE.

SPECIFICATION forming part of Letters Patent No. 630,963, dated August15, 1899. pplicatioii filed February 15, 1899. Serial N0- 705.,575. (Nomodel.)

To @ZZ whom t may concern:

Be it known that l, ALBERT EDWIN Woo'Ds, a citizen of the Dominion ofCanada, residing at New Westminster, in the Province of BritishColumbia, Canada, haveinvented certain new and useful Improvements inDowel-Door- Boring Hachines, of which the following is a specification.

My invention relates to `improvements in machines for facilitating themanufacture of wood doors, more particularly known as doweled doors, inwhich drills or bits are mounted in reciprocating frames on oppositesides of the frames on which the assembled portions and stiles of thedoor rest; and the objects of my improvements are, first, to providesupport-frames for the assembled portions of the doorand stiles onplanes above and below each other, respectively, and arrangedintermediately between reciprocating frames, each carrying a pluralityof drills on the planes of the assembled portions of the door andstiles; second, to simultaneously move the frames carrying the drillsforward and automatically clamping thel assembled portions of the doorand stiles from above and below, respectively, by the action of saidreciprocating frames forward while the stiles and rails of a door arebeing bored, and,third, to provide facilities for adjusting the severalparts to accommodate and bore doors of various dimensions.

Other advantages will also appear when this specification and theappended claims are fully understood.

I attain these objects by the mechanism illustrated in the accompanyingdrawings, in which- Figure 1 is an end elevation of the machine, takenfrom the position occupied by the operator. Fig. 2 shows a sideelevation of the machine, taken in the 'direction of the arrow onFig. 1. Fig. 3 is a plan of one-half of the machine. Fig. 4 shows anenlarged detail elevation of the gear by which the door-rests andstile-rests are raised and lowered simultaneously to suit varyingthicknesses of timber usedin their construction. Fig. 5 is across-sectionof the same on the line ct a of Fig. l. Fig. 6 is asimilarillustration'on the line l) h oi' Fig. Ll. Fig. 7 is across-Section on the line c c of Fig. Je, showing the fence adxthe doorand stiles are placed while they are being bored. Fig. 11 is an endelevation of the same. Fig. 12 is a detail of part of the primary gearfor actuating the reciprocating frames and the mechanism forautomatically throwing the sameout of action at the return Y y of eachstroke. Fig. 13 is a vertical crosssection showing the slideways of theintermedial and the reciprocating frames, respectively, taken on theline d d of Fig. 1. Fig. 14C shows a detail plan of the rails employedto aline and hold the various pieces of a doorbody in proper relationwhile being bored, and Fig. 15 is a detail elevation showing how theprojecting guide-pieces 43" secure the alining-rails.

Similar figures and letters refer to similar parts throughout theseveral views.

10 indicates the bed or main frame of the machine. Adjustably mounted onsuitable tracks 10 on each side of this frame 10 are frames 11, whichare securely held together by girders 12. Journaled in bosses 11 andpassing through these frames 1l in proximity to their base are rods orshafts 13, which are provided with hand-wheels 13n for turning. Securelyfixed on these shafts 13 and lying just within the frames 11 are pinions14, which engage fixed racks 10" on the fixed frame 10. By turning thehand-wheels 1S theframes may be set on the bed 10 in the relativeposition to each other desired and fixed in such a position by theset-screws 15 on the other side of the same for a reason to appearhereinafter.

Arranged on slideways 11c on the adjustable frames 11 are reciprocatingframes 16. Jonrnaled in standards 17 on each side of the machine andpassing through the 'same on a plane about the center of the adjustableframes 11 is a shaft 1S, and arranged in suitable bearings on extendingears 11b on each side of .the machine are shafts 19. These shafts 19pass over the opposite ends of the IOO shaft 18, on which is arrangedworm-gears 18a, which engage worm-wheels 19a on the shafts 19. At theopposite ends of the shafts 19 are fixed cranks 19, and these cranksconnect with the reciprocating frames 16 by the rods 20.

Adjustably fixed on the reciprocating frames16 are pedestals or frames2l. These frames, as shown in Figs. 2 and 3, are movably mounted on theframes 16, and they are secured by bolts passing through slots orchannels 16C in said frames 16. This is for the purpose of setting themat any position on the said frames 16 for a reason to appear presently.The said fram es 21 are each pret'- erably made in three sections 21,21, and 2lb, the'portion 21 being the main bed-piece, in the center ofwhich is a recess which receives the block 21a, between the horizontaljoints of which are arranged a plurality of spindles 22 on differentplanes, and the upper section 21b provides a suitable bearing forpulleys 23 and 24. The shaft on which the pulley 23 is fixed extendsthrough the outer side of the frame 2lb, and fixed on the end thereof isa gear-wheel25. (SeeFigs-1and3.) Thisgear- Wheel 25 communicatesmovement to a like Wheel mounted on one of the spindles 22, and in likemanner movement is imparted to one of the spindles on the lower planebythe wheels 26 and 27. Secured on these spindles carrying the wheels 2Gand 27 between the same and the frame 21L are pinions 28, which meshwith like pinions secured on each of the spindles in the respectivegroups. This gives a uniform movement to all of the spindles.

Securely fixed to the opposite or inner ends of the spindles 22 aredrills or bits 29, which, as shown in Figs. 2 and 3, may be reduced orincreased in number, according to the class of work that is to beperformed. As it is obvious that the spindles are moving in oppositedirections, it is necessary to have the drills of right and left pitch.

Mounted in suitable bearings on supports 30 is a counter-shaft 31.Movement is imparted to this shaft 31 by a belt 32 taking around apulley 33, secured thereon, a belt 34, driven by a pulley 35 ou saidcounter-shaft and around a pulley 36, mounted on the shaft 18,communicates movement thereto, and a belt' 37, passing overapulley ordrum 38, having a wide periphery on said counter-shaft, and over theplurality of pulleys 23 and 24, mounted in the frame 2lb, imparts a highspeed thereto, and consequently to the spindles turning the drills orbits. For taking up the slack in this belt 37 and keeping it tight Iprovide a tightener 39, the same being operated by the wheel-screw 40taking through the frame 16. (See Figs. 3 and 13.) The eX- tra width ofthe pulley o r drum 38 allows for the lateral movement of the frame 16,supporting the drill-frames. Rigidly fixed to the inner side of theadjustable frames 11 are pedestal-brackets 41, (see Figs. 1, 4, and 6,)in which are journaled screws or spindles 42, the

surfaces of which for a distance are threaded, as at 42, and on each ofthe screwed portions 42 is a bracket 43, which is integral with andsupporting the frames 43, eXtend ing approximately the length of themachine and forming adequate supports for the assembled portions of thedoor A.

Rigidly fixed on each of the spindles 42 are worm-wheels 44, whichengage a worm 45, fixed on a shaft 46, suitably mounted in bearingsintegral with the pedestal-brackets 4l. By turning the said shafts 46 itis obvious thatthe frames 43' will be elevated or depressed for thepurpose of arranging the body of the assembled door on an even planeWith the bits, so that the hole will be bored directly inthe center,leaving an even thickness of wood on each side of the apertures.

The frames controlling the elevation or plane of the stiles B arearranged on the opposite side thereof, as shown in Fig. 6. This ispractically the same mechanism as is shown in Fig. 5, but with aleft-hand screw 47, and thus the frames 48 control the stiles in aninverted position.

As shown in Fig. 1, when the doors A and the stiles B have been bored itis necessary to turn the stiles over to bring theirbored sides oppositeto the holes in the rails in the position the respective parts will bein after being put together. It is therefore necessary to bore thestiles with their face sides clamped upward against the brackets orframes 48, while the face of the other portions of the door lie downwardupon the frames 43a, and in adjusting for varying thicknesses of woodemployed in the construction of the doors the support-frames 43*4 and 48are raised and lowered, respectively and simultaneously, by turning theshaft 46 beneath the opposite side frames, as before indicated.

As shown in Figs. 4 and 7, I providea fence 49 along the inner edges ofthe frames 48 for the stile to lie against while being bored, and in theevent of varying widths of stiles being used this fence may be adjustedon each of the frames 48 by the bolts 50 being moved in the slots 48:Land set so that the opposite edges of the stiles will be the properdistance from the bits 29.

As the portions'of the door-body are assembled on the frames 43L and thestiles placed in their respective positions beneath the frames 48 toprevent them from going too far and to keep them in alinement until theyare secured, as will be explained presently, I provide stops. l (SeeFigs. 10 and ll.) 'This consists of rock-shafts 5l, mounted in lugs 4.5con the outer side of the frames 43a. At the opposite end of each ofthese shafts from the operator is a fixed bracket 52, having ears IOC'IIC

52 and 52", the ears 52a being susceptible of being thrust in the trackof the assembled parts of the door, and pivoted to the ear 52b is adepending bolt 53, which passes loosely through apertures in the frames48. When the handle 54, which is secured to the oppo- K site end of eachof the rock-shafts 5l is turned upward, the stops 52L and 58 will bethrust in the way of the door pieces and stiles, as shown in Fig. 11,and when the handle is reversed these stops are withdrawn.

To tightly press the assembled portions of the door rails and panelstogether, I provide a clamping device 54, supported and vertically-movable on supports 55, which are mounted in pedestals 5G. (See Figs.1, 3, and S.) Fixed in a pivoted manner to the lower ends of thesupports 55 and with their opposite ends fixed to a way-shaft 57 arelevers 58. To allow for the versed sine of the arc of the levers 5S,slots are made therein for-the connecting-pins 59 to slide and allow aneasy movement for the vertical rise and fall of the supports 55. Thesaid shaft 57issuitablysupported in brackets 60 and is passed throughthe front shell of the frame 10, and securely fixed to its projectingend is a pedal 61, by which the vertical movement is controlled.

The clamp-bar 54 is rigidly fixed to the supports 55 and is preventedfrom turning by setscrews 62, and on one end is a fixed pressurebar 54,secured by a pin 63, passing therethrough, and the rod. The clamp-barmay be adjusted to engage doors of shorter dimensions by removing thepin 63 and moving it along the rod and inserting' the pin in one of theseveral holes 54, as shown. On the opposite end is arranged a slidablepressure-bar 54C, which is moved along the rod by a screw 64 takingthrough a fixed nut 65 on the end of the rod.

The foregoing clamp when not in use is at a plane below the frames 43a,so that the Amembers of a door may be slid directly to their properposition without inconvenience from any part of the clamp. The operatorthen depresses the pedal 61, which raises the clamp to its properposition for receiving the door, and a few turns of the screw will forcethe pressure-bar 54c toward the bar 54"L and clamp the assembledportions of the door tightly together while the boring is performed,which will now be explained.

As each revolution of the shaft 19 occurs by reason of theconnecting-rods 20 communicating between the cranks 19b on the oppositeends of the said shafts 19 and the frame 16 the said frames will bedriven toward each other and returned a distance in proportion to thelengths of the said cranks. lVhen such forward movementtakesplace,c1ampingbars will be pressed down on the upper opposite edges ofthe assembled rails and panels, (see Figs 1 and 9,) and the stiles areforced upward against the bed-plate frames 4S and securely held bysimilar mechanism while the boring is done or while the frames carryingthe auger-bits are being reciprocated.

The mechanism which clamps the assembled porlions of the door-frame fromabove consists of spring-levers 6 6, fulcrumed on brackets 67, which arerigidly fixed to the adjustable frames ll. The inner ends of theselevers 66 have laterally-deflected,pins 66a, on which are mountedrollers 68, and these rollers take upwardly in sloping channels in'brackets 69, which are securely bolted to the reciprocating frames 16.This causes the outer ends of these levers to be raised when the frames1G move inward, and consequently their inner ends, which are connectedby clamping-bars 70, will be pressed downward upon the assembledportions of the door A. The stems of the levers 66 between theirfnlcrums and the bars 70 are of a slight springy nature, so that anyinequalities in thickness of timber employed in the doors being bored orthe varying heights of the support-frames 43a will not materially change the downward pressure exerted by the clampingbars 70.

The mechanism for forcing the stiles upward against the framesv4S is anexact duplicate of the upper clamps, but inverted to act upwardly, andon the upper side of the under clamp-bars 70 are support-slides 71, onwhich the stiles rest.

To provide for the assembled members of the door A being alined and heldfirmly in proper position while resting on the frames 43a and beingbored, I arrange alining rails 43", which project above the plane of thesaid frames and are made to move laterally in or ont to engage orrelease the ends of the assembled pieces of the door. (See Figs. 9, 14,and 15.) These rails are supported by having laterally projecting guidepieces 432 which pass through slots a inthe frames 43a. The mechanismfor pressing the rails 43b in and out consists of thelaterally-projecting lugs 43C on the outer sides of the frames 43, rockor way shafts 51, journaled in said lugs, bell-cranks d, pivoted on therock-shafts, the upper ends of which are provided with pushheads restingin suitable sockets in the opposite ends of the rails 43h, and links e,connecting with rigid arms 66 on the levers 66. It is evident that asthe frames 16 move forward the ends of the arms 66h, having theconnection with the alining rails 43h, will be thrown upward. This willcause the bell- IOO IIO

cranks d to force the said rails forward sininltaneously, and thus theassembled rails of the doorAwill be forced into proper alinement beforeengaging the thrust of the drills and rmly be clamped in position Whilebeing bored. The backward movement of the frames 16 reverses theoperation, thus cansing the assembled portions of the door to bereleased and permitting their removal from the machine.

In order that the lateral clamping of the door-pieces may be performedby the aliningrails 43b before the upper bars 70 are brought down on theassembled door, the lower levers are caused to act more quickly than theupper ones. This more acute movement is effected by reason of the lowergrooves or channels in the frames or brackets 69 being of a steeperpitch, which causes the lower levers IZO T4 Vceases Yto operate thealining-rails 3b and the under bar 70 before the up or down movement ofthe upper bar is fully effected, and thus in the event of the portions Anot being in their proper alinement when placed in the machine theforward movementof the frames 16 Will cause the alining-rails toreciprocate and engage the opposite ends of the said portions and forcethem to their proper positions. As shown in Figs. 1 and 3, thealining-rails 431 are provided at their forward ends with outward curves43g, forming a bell-'mouth at the entrance to the alining-fraines 4f3nfor the door-pieces. This facilitates the placing of the door-body inthe machine preparatory to the operation of boring.

From the above it is manifest that t'ne bellcranks d are fulcrumed onthe same shaft 51 that operates the stop mechanism for the door body andstiles. This, however, need not be the case, as the bell-cranks d may besuitably fulcrumed on studs secured to projecting lugs from thebed-frames 43a. The change of detail in this arrangement will not changethe mode of operation nor will it materially change the mechanismemployed.

In operation the several parts should be adjusted so that the frames 16may move sufticiently for the levers 66 to be forced apart to the point69L before the drills engage the timber. (See Fig. 9.) This provides forall the boring to be done while the rollers travel the level planes 69h,and consequently there will be no movement or varying pressure of thelevers while the work is being performed.

As before intimated, movement is imparted to the shafts 19by means of aworm 1Sa on vthe shaft 18 meshing with worm-wheels 19,

secured on the said shaft 19, (see detail Fig. 12,) and it also appearedthat the frames 11 were intended to be adjusted so that the machinemight operate upon doors of dierent widths. New it is evident that inorder to perform such adjustment the worms 18a, mounted on the shaft 1S,must be moved with any movement of the frames 11. This is accomplishedby such worms 18a being inclosed in brackets 72, securely xed to theopposite sides of the said frames, and the worms made to slide onfeathers 1Sb on such shaft, and thus controlling the parts in a simpleand practical manner. At each stroke of the connecting-rods 20 and themutual reciprocating action of the fi'ames 16 the several members of adoor are bored, and it is obvious that the movement of the framescarrying the drills should cease during the time required for removingthe members just operated upon and introducing another piece of work.Therefore I provide an intermitting movement for the shaft 1S, andconsequently the said frames 16.

This consists of the wheel 36 being loosely mounted on the shaft 18 andis thrown in and out of gear by a friction-clutch 73 engaging the innerside of a cone 75 in the wheel, and the clutch is operated by a lever76, secured to a rock-shaft 7 7 suitably mounted beneath Aand passing atright angles to the shaft 18. The upper end of the lever 76 engages agrooved slidable sleeve 78, and this sleeve .when pushed forwardopensthe jaws 79, which acting upon a fixed collar 7 9a, pinned to shaft 1S,forces the conc 75 forward,thus engaging the friction-clutch;V but whenthe lever isre# versed'the clutch will be disengaged. This clutch is notnew, but is in common use in voperating mechanism of this class. Asbetter shown in Figs. 1 and 3, secured to the rear end of thel shaft 77is a short bar 80, and communicating between this and a hand-lever 1S isa connecting-rod 82. Each time the operator wishes to start the fralnes16, carrying the drills, forward he pushes the handlever S1 forward.This throws the clutch mechanism into action, and the drills startforward and make one stroke, and Vconsequently the members of a door arebored ready for the introduction of the dowel-pins, which is a4subsequent operation. the clutch to let go automatically at the returnof each stroke without the assistance or attention of the operator, lprovide a lever Y83, secured, to the said rock-shaft 77 and placed at anoblique angle toward the machine. On the end of this lever 83 (see Fig.12) is an antifriction-roller 84, arranged to turn on a pin 85 iu theend thereof. This roller S4, when the clutch is contracted, is poised inthe path of an upwardly-curved bracket S6, which is secured on one ofthe moving frames 16. It is obvious that as the frame returns thebracket S6 will depress the end of the lever S3. This will rock theshaft 77, and consequentlywill withdraw the sleeve 7S and allow theclutch to release, thus stopping the motion of carriages 16. The lever83 is made of sufficient resiliency to allow of the lever 76 beingforced over by the handlever v81, when the carriage 16, carrying thebracket S6, will immediately move forward and disconnect with the roller84:, and the said roller will be in the proper position for tripping theclutch at the return of the next stroke. j

The adjustment of the drillcarriages 21 for boring doors ofvarious'sizes and designs is extremely' simple. (See Figs. 2 and 3.) Byloosening the bolts that hold these carriages down they maybe slid alongthe frame 16 to the positions desired and secured by tightening up thesaid bolts, which take through the slots 16C, as shown, and the numberof drills 29 may be increased or decreased for boring the respectivesetof holes as desired.

As indicated by the numerals 87 in Fig. 1, the frames 11 and frame 10are provided with gage-indicators to facilitate the adjustment of thesaid frames 11 for operating ou doors of various widths.

In the practical operation of my improved dowel-door-boring machine theframes 11 are adjusted and set on the bed 10 in the proper positions,according to the width of the doors to be operated upon, as will beshown by the To cause IOO IIO

indicators. The support-frames or slideways 43 and 4S for the doors andstiles are then adjusted up or down, as required, to make the centers ofthe wood come fairly in alinement with the drills. This adjustment willdepend upon the thickness of the wood einployed. The assembled membersforming thc body of a door are then placed on the frames 43CL (afterhaving first set the stops 52 and 53 in position) and the stiles arepushed to their proper place. The clamp is then thrown into position bythe operator depressing the pedal 61, and the wheel 64 is turned uptight, thus clamping the assembled members together. The lever 81 ispushed over. This sets the frames 1G in motion, which movement pressesthe clamping-bars on the door from above 4and the clamping-bars u p frombelow on which the-Stiles rest, thus securing the assembled door-body onthe bed plate or frames 43 and the stiles against the under sides of thebed plate or frames 48 while the boring is performed. lVhen thecarriages or frames 16 rcturn, they rest in this position by reason ofthe clutch having released the wheel 36 from its shaft and allowed it torun free. The operator removes the stops from the opposite end of theseveral members of the door, when he may push them forward through themachine and insert another set of members to be acted upon, when theoperation is repeated.

The several members of the door are prevented from moving laterallywhile being bored by the ends of the portions A resting against thealining-rails 43b,movably arranged on the outer edges of the frames 43,and the stiles are held in a like manner by the fences or guides 49.(See Figs. 5, 7, and 9.) This prevents the possibility of the partsbeing moved by the thrust of the drills.

Having now described my invention, what l claim as new, and desire to beprotected in by Letters Patent, is

1. In a machine for the purposes set forth, having a bed 10 andadjustable frames 11, mounted thereon, with oppositely-projecting earsand crank-shafts 19, mounted in suitable bearings on the said ears, incombination with reciprocating frames mounted on slideways on theadjustable frames, connectingrods 2O connecting the cranks of the saidshafts with reciprocating frames and means for imparting an intermittingmovement to the shafts 19, whereby the said frames will be reciprocated,as specified.

2. In a machine of the class described, having a bed 10, and adjustableframes 11 mounted thereon, and reciprocating frames 16, mounted on theframes 11, carrying a plurality of drills arranged in sets in differenthorizontal planes, in combination with assembling-frames 43, forsupporting members of a door-body on the plane of the upper drills, andframes forsupporting the stiles on a plane with the lower drills, andmeans for automatically clamping the assembled members, for

rotating the drills, and for moving the frames forward and back atintervals, as specified.

3. ln combination with reciprocating frames 16, carrying sets of drillsat different horizontal planes, oppositely-faced support bedplate frames43 and 4S, for holding the door rails and stiles, respectively, of meansfor sin1 ultaneously moving the frames 16 forward and back at intervals,and while being moved forwardly forautomatically clamping the severalmembers of a door, as specified.

4. In a dowel-door-boring machine, having a bed and adjustable frames11, mounted on the same, and reciprocating frames 16, slidably xed onthe frames 11, oppositely-projecting ears 11", integral with the frames11, shafts 19, having cranks suitably mounted on said ears, incombination with ashaft 18, traversing the bed at right angles to thecrankshafts 19, worm-gears slidably mounted on the opposite ends of saidshaft 1S, and wormwheels secured on the crank-shaft 19, meshing with thesaid worms and connections from the crank-shafts to the reciprocatingframes 16, as and for the purposes specified.

5. In a machine for the purposes set forth, having a bed 10, adjustableframes 11, mounted thereon, and reciprocating frames 16, on the frames11, in combination with drills mounted in sets on different horizontalplanes, movable with the frames 16, of bed-plate frames 43 and 4Sarranged between the said drills and positioned so that the door memberswill be held thereon and thereunder, respectively, in direct lines withthe planes of the drills, and means for automatically clamping the doorsfrom above and below by the movement of the frames 16, as set forth.

6. ln a machine for the purposes described, having a frame 10,adjustable frames 11, and reciprocating frames 16, carryingdrill-carriages having drills in sets on different planes, incombination with vertically-movable bedplate frames 43*L and 4S,supported by the inner sides of the frames 11, means for lowering theframes 43, and raising the frames 4S, simultaneously and for clampingthe members of a door from above and below by the vmutual reciprocationof the frames 16, as

specified, and for the purposes set forth.

7. 'lhesupporting-frame43 forassembling doors, in combination withadjustable frames 11, arranged on a suitable bed, pedestalbrackets 41,secured to the inner sides of said frames 11, vertically-placed spindles42, in such brackets, screw-threads on said spindles and nuts 43, on thesame, which are integral y with door-assembling frames 43, and means forturning said spindles 42, having the screws whereby the frames will beraised or lowered, as specified.

8. A mechanism for raising and depressing door-assembling bed-plateframes 43TL and 48, simultaneously, consisting of pedestal-brackets 4l,secured on suitable supports, spindles 42 and 47 having right and lefthand screws,

IOO

IOS

IIO

respectively, nuts on said screws integral with the assembling-frames,shafts 46, alranged in suitable bearings at right angles to and inproximity with said spindles, worm-gear on said shafts, and worm-wheelsfixed to the spindles 42 and 47, whereby, by the turning of the shafts46 the frames 43a, will be elevated or depressed and t-he frames 48 willbe moved in the opposite direction, simultaneously, as set forth.

9. Stop mechanism attached to the outer sides of support-frames 43a,over frames 48, which consist of rods or way-shafts 51, arranged inbrackets 43C, lugs 52 and 52h, on brackets 52, secured to the forwardends of said shafts, depending bolts 53, pivoted to the lugs 52b andpassing through apertures in the said frames 48, and handles 54, aflixedto the rear ends of said shafts by which the shafts are turned, wherebythe lugs 52a, will be thrust over the plane of the frames 43, and thebolts 53, will be projected below the under plane of the frames 48, byadownward movement of the handles 54, and will be withdrawn by an upwardmovement of the same.

10. In a machine for simultaneously boring rails and stiles of doorshaving a bed, adjustable frames 11, arranged on opposite sides thereof,and reciprocating frames 16, mounted on said frames 11, in combinationwith suitable supports for assembling door-bodies, and frames forsupporting the stiles, spring-levers 66, arranged in sets pivoted onbrackets 67, secured on the frames 11, rollers 68, on the ends of thelevers, oppositely-defiected vertical guideways in brackets 69,receiving said rollers, und clamping-bars 70, secured on the resilientends of said levers, and means for moving the frames 16, toward eachother simultaneously, whereby the upper bars 70 will press downward andthe lower one will press upward, as and for the purposes set forth.

v11. In combination with suitable frames 16, carrying drill-carriagesmounted on suitable slideways, bed-plate frames 48a, for supporting theassembled body of a door, the clampbar 54, having a fixed and a movableclamp thereto, of bed-plate frames for arranging the members of adoor-body on a plane with the upper drills, and for also arranging thestiles thereto on a plane with the lower drills, but in an invertedposition in respect to the assembled portions of the door, and means forsecuring said respective members and for moving the drills forward, asspecified, and for the purposes set forth. g

13. In a machine, as specified, having a bed adjustable frames 11,mounted thereon, and reciprocating frames 16, arranged to simultaneouslymove on the frames 11 and drill-carriages adjustably mounted on theframes 16, as shown; in combination with spindles mounted in setscarrying drills on dierent planes, in said drill-carriages, of bed-plateframes 43, and 48, to receive the face side of door members and meansfor securing the same, and of imparting a uniform speed to the drillsand for mutually reciprocating the said carriages, as set forth, and forthe purposes described.

14; In combination with a machine fordowelboring the respective membersof doors, havinga bed 10, and adjustable frames 11, mounted thereon,with means for moving same laterally along the bed, ears or lugsoppositely projecting from and integral with the frames 11, shafts 19,having cranks at their opposite ends suitably mounted in said lugs,connecting-rods secured to said cranks and to reciprocating frames 16,having drill-carriages thereon, with drills on diiferent planes, meansfor arranging the members of the doors in the tracks and on dilferentplanes Aof the drills, and means' for imparting an intermitting movementto the shafts 19, whereby thedrills will be pushed forward andwithdrawn, as specified.

15. In combination with adjustable frames 11, and reciprocating frames16, lugs 11b, integral with the frames 11, shafts 19, having cranks ontheir opposite ends, connections between the cranks and thereciprocating` frames, a shaft 18, arranged in suitable bearings atright angles to the shafts 19, worms 18a, slidably mounted on theopposite ends of the said shafts 18, meshing with wormwheels 19, fixedon the shaft 19, and means for imparting movement to the shaft 18,-andfor automatically stopping the same at the return of each stroke of thesaid reciprocating frames, as specified.

IOO

IIO

16. In a dowel-door-boring machine, having mutual reciprocating frames16, mounted on suitable slideways, the same carrying swiftlyturningdrills or bits in sets on dierent planes, means for supporting the Workin different planes means for moving the said frames forward and backremittently, which consist of shafts 19', having cranks mounted insuitable bearings on opposite sides of the said frames, said cranksconnecting with the frames, a shaft turning at right angles thereto,having worms secured thereon, meshing with worm-wheels secured on theshafts 19, and a clutch mechanism secured on the shaft 18, for grippingand releasing a wheel 36, turning on said shaft, as specied.

17. In a machine for the purposes described, having a bed 10, adjustableframes mounted thereon, and reciprocating frames 16, caused to move uponthe adjustable frames, shafts 19, having cranks on their opposite endssuitably mounted on the opposite sides of the frames 16, and connectionsfrom the said cranks to the frames 16, a shaft 18, placed at rightangles to the shafts 19 and means for communicating movement from thesaid shaft 18, to the crank-shafts 19, in combination with a clutchsecured on the shaft 18, and means for tripping the same automaticallyat each return stroke of the frames 16, substantially as specified.

18. In a machine for the purposes described, having a bed 10, adjustableframes mounted on said bed, and reciprocating frames 16, car ryingdrill-carriages, having drills mounted on different planes, means forsupporting the work in different planes and means for moving the saidframes carrying the drill-carriages forward, and of automaticallystopping the same at the return of each stroke, consistin g of a shaft18 arranged to turn at right angles to and beneath the reciprocatingframes, said shaft having a loose pulley7 mounted thereon, afriction-clutch on said shaft arranged to connect with an integral cone,and a sleeve slidably fixed on the shaft 18, a rock-shaft 77, suitablymounted beneath the shaft 18, having a lever fulcrumed thereon, saidlever connecting with the said sleeve, and a resilient lever 83,fulcrumed on said shaft 77, and deflected in the path of a fixed bracket86, secured to one of the moving frames 16, as speciied.

19. In combination with a machine of the class described, having abed-frame 10 and adjustable frames 11, and reciprocating frames 16,mounted on opposite sides of doorassembling frames 43, and 48,alining-rails 43h, slidably mounted on opposite sides of the frames 43,compound levers fulcrumed on the frames 43a, and on pedestals orbrackets 67, on the frames 11, inclined grooves in brackets 69, on theframes 16, connecting with and acting as gnideways for the outer ends ofthe levers fulcrumed on the brackets 67, and meansfor moving the frames16, forward, whereby the alining-rails will be moved forward during partof the travel of the frames 16, substantially as specified.

20. In a machine for simultaneously boring rails and stiles, of doorshaving a bed, adj ustable frames 11, arranged on opposite sides thereof,and reciprocating frames 16, mounted on said frames 11, in combinationwith suitable bed plates or frames 43a, for assembling door-bodies, andlike frames for supporting the stiles, spring-levers 66, arranged insets to work vertically from above and below pivoted on brackets 67,secured on the frames 11, rollers 68, on the outer ends of the levers,oppositely-deflected vertical guideways in brackets 69, receiving saidrollers, and clamping-bars 70, secured on-the resilient ends of saidlevers; in combination with laterally-movable alining-rails 43",slidably mounted on the opposite sides of the supports 43d, and compoundlevers communicating between the same and the lower levers 66, and meansfor moving the frames 16, toward each other simultaneously whereby theupper bar 70, will press downward and the lower one will press upward,and the alining-rails 43, will be thrust forward, as and for thepurposes set forth.

21. Amechanism for simultaneously clamping the assembled members of adoor-body from above and its stiles from below, and for alining thedoor-body on opposite sides, bedframes 43a, and 48, on which and underwhich the door-body and the stiles rest, respectively, clamp-bars 70,arranged above and below the door members, moving frames 69, arranged onopposite sides of the frames 43a and 48, xed brackets 67, arrangedbetween the moving frames 69, and the frames 43d and 48, levers 66,fulcrumed on said brackets 67, and communicating between the bars 70,and the moving frames 69, oppositely-deiiected guideways in the frames69, from the ends of the said levers 66, to travel the lower channels ofwhich or the guideways engaging the lower levers 66 are of more acuteangle than the upper ones; in combination with alining-rails 43h,slidably fixed on the opposite sides of the frames 43, and compoundlevers communieating between the lower levers 66 and such alining-rails,all substantially as specified.

ALBERT EDWIN WOODS.

XVitnesses:

W. G. TRETHEWEY, RowLAND BRITTAIN.

